Pathogenicity of a caprine herpesvirus

Area of Science:

• Veterinary Virology
• Infectious Diseases in Livestock

Background:

• Neonatal Angora kids (Capra hircus) can suffer from severe generalized infections.
• Herpesviruses are a significant cause of disease in various animal species.

Purpose of the Study:

• To characterize a herpesvirus isolated from neonatal Angora kids.
• To determine the pathogenicity and host range of this caprine herpesvirus.
• To assess the antigenic relationship between the caprine herpesvirus and bovine herpesvirus 1 (BHV-1).

Main Methods:

• Isolation and characterization of a herpesvirus from infected neonatal goats.
• Inoculation studies to assess pathogenicity in goats (kids and adults), lambs, and calves.
• Serological testing for antibody overlap with BHV-1.
• Cross-immunity tests in calves.

Main Results:

• The isolated herpesvirus was infective for both neonatal and adult goats.
• The virus lacked pathogenicity in lambs and calves.
• A serological overlap was observed between the caprine virus and BHV-1 antibodies, but cross-immunity tests confirmed they are distinct.
• The virus appears to be a goat-specific pathogen.

Conclusions:

• The herpesvirus isolated from Angora kids is a distinct pathogen of goats.
• The proposed taxonomic designation is Herpesvirus caprae or caprine herpesvirus 1.
• This finding has implications for goat health management and disease control.